Rotary pump



April 13 1926. l 1,580,162

c. J. .PETERSON ROTARY PUMP 'Filed Feb. 15, 1925 NVE/v TOR 3--3 of Figure 2.

bearing chamber e of the Patented Apr. 13, 1926.

CARL J. PETERSON, 0l' PROVO, UTAH.

ROTARY PUMP.

Application ``1l1e1 February To all whom 'it may cof/wcm:

Be it known that I, CARL J. PETERSON, a citizen of the United States, residing at Provo, in the county of Utah and State of Utah, have invented certain new and useful Improvements in Rotar Pumps, of which the following is a speci cation?.

My invention relates to pumps and has for its object to provide a compact rotary ballvalve pump wherein centrifugal action, and a water pressure in the 1discharge pipe, act on the balls to hold them in the water passage of the pump. i These objects I accomplish with the device illustrated in the accompanying dra'wings in which similar letters and numerals of reference indicate vlike parts throughout the several views and as described in the s ecification forming a part of this application and pointed out inthe appendedclaims.

In the drawings in -which I have shown the best and most Substantial embodiment of my invention, Figure 1 is a side elevation 'o the pump showing the suction and discharge inlets. Figure 2 is an edge elevation of the pump looking in the direction ofthe intake port. Figure 3 is a vertical section on line Figure 4 is a vertical secof Figure 1. Figure 5 is ball-carrying impeller.

tion on line 4 4 side elevation of the 'Figure 6 is an edge elevation of the impeller and a portion of its shaft. Figure 7 is a lan view of one side of the ball case showing the ball race therein. Figure 8 is an g edge view of the same.

My invention consists of a casingl A having an open interior and provided with a closure plate B on one side thereof; said casing is provided with a threaded inlet opening and a threaded outlet opening D. bearing boss a is integrally formed on the said casing A and a like boss b on the closure plate B. The said casing A is excentrically bored through its sidewall with the bore extending through its boss a, and the said closure plate B is excentrically bored in alinement with the bore in the said casing A, and with the bore extendedv part way through the boss b to form a busl ing chamber'e which is bushed with graphite or ether suitable bushings, as at c, to forni a bearing for the shaft E of the pump. Connecte with the interior of the discharge opening D of the pump is a pipe 1 which enters the device and connects i with an axial longitudinal conduit 2, bored f cases H and excentric in position A im d. Hin the casing A, I

1e, laas. serial No. 9,561.

liquid may pass from the discharge pipe D to the interior of an impeller F. A lubricating ipe 3 is inserted in the discharge opening and connects the interior of said opening with the shaft E for lubricating the said Shaft E in its bearing. The interior of said case A is bored out to form an annular ball casing vrecess 4, and a portion of the closure plate B is similarly recessed to form `|the opposed annular recess 5 for the other side o the ball casing. The ball-carrying impeller is mounted on said shaft E and secured thereto to position the said impeller ,F concentrically within the said recesses 4 cesses 4 and 5 are carried the respective ball as to said shaft E and impeller F. Each of said ball cases II has portions cut from its periphery to form an opening for the intake, as shown at 8,'and one for the discharge of the liquid to the interior of the pump, as at 9, and the interior of the said case A is. internally cut away contiguous said openings Band 9 to form the intake and discharge chambers of the pump, as shown at J and K. The said ller F is also radially bored, as shown at from the bottom of each of said b all openings 6 to the shaft opening e in which shaft E is operated, and within each of said chambers M is carried a cylindrically-sliaped. plunger cup 16, and said chambers M are C 1n open connection with the bore 2 in the end of the shaft E in order that liquid may be held under the pressure of the water head in the discharge opening D in the pipe 1, o ening 2, and each of said `chambers M to eep the said plunger cups 16 constantly bearing against the balls G, which pressure, when combined with the centrifugal force of the rapidly moving impeller and balls, willl force the balls into and hold them as valves in the crescent-shaped excentric opening 15 formed between the impeller F and said cases To insure a proper setting ofthe b all cases provide a position pin 14 in the ineetin line between said ca sing A andcases H. packinvr gland P is provided around said shaftEE for sealing any possible leak from the interior of said casing.

Ihe operation of my pump is as follows: Wlth power applied to rapidly rot-ate the shaft E, the balls G will be, by centrifugal force,` held to their outer position in said ball cases H and water will be drawn through vthe inlet C and carried in the excentric space 15 between said cases H and the periphery of the impeller from opening J to opening K and be forced through the discharge opening. The pressure of the water through the pipe 1 and bore 2 will force the plunger cups 16 outwardly in their respective radially-disposed chambers M and prevent the balls vfrom falling by gravity away from the inner wall of the cases H; and said balls will force the water between the cases and the periphery of the impeller F through the discharge opening.

Having thus described my invention,v I desire to secure by Letters Patent and v of said casing; `a packing carried in said bore; a shaft journalled in said packing, one end of which is spaced from the end of said bore and centrally bored and on which a ball 30 carrying impeller is secured; a pipe connecting the discharge opening of said casing with the central bore of said shaft; radially disposed orts from the'said central bore to the peripiiery of said shaft; a ball-carrying impeller mounted excentrically in the interior of said casing; a plurality of balls carried in said impeller; radially disposed central bores through said impeller; plunger cups carried in said radial bores by which said balls are supported and adapted to be moved outwardly when the water is discharged through the discharge pipe connected with the outlet opening of said casmg.

2. A rotary pump( comprising a hollowed out casing having' an inlet and an outlet opening connected with the interior ot said casing; a ball race carried within said casing and having elongated slots in its periphery in open connection with the respective openings in said casing; a ball-carrying impeller excentrically mounted in said casing and ball race and having radially disposed openings therein; a ball carried in each `ot saidl impeller openings and operable within said race; and a rotatable shaft journalled in said -casing and on whichv said impeller is secured.

bored therein; a ball carried in each of the larger sizes of said holes; cylindrical cup plungers carried in each of the smaller sized holes and adapted to bear against the-balls adjacent; a rotatable shaft journalled in said casing having an axial bore therein and radially connected with the holes in said impeller; and a conduit connecting the outlet. v opening of said casing with the axial bore of said shaft.

In testimony whereof -I have afxed my signature.

CARL LJ. PETERSON. 

